diff --git a/lake-manifest.json b/lake-manifest.json
index 97de594504a89..20655be60d402 100644
--- a/lake-manifest.json
+++ b/lake-manifest.json
@@ -5,10 +5,10 @@
    "type": "git",
    "subDir": null,
    "scope": "leanprover-community",
-   "rev": "905081cf56230efae4bc7ed10f1add9a76661a34",
+   "rev": "8a09d5093af15b69775e17993d00406d0416243f",
    "name": "batteries",
    "manifestFile": "lake-manifest.json",
-   "inputRev": "nightly-testing",
+   "inputRev": "nightly-testing-2024-07-09",
    "inherited": false,
    "configFile": "lakefile.lean"},
   {"url": "https://github.com/leanprover-community/quote4",
diff --git a/lakefile.lean b/lakefile.lean
index 6c2bb2bebdef7..83f245fea308e 100644
--- a/lakefile.lean
+++ b/lakefile.lean
@@ -18,7 +18,7 @@ package mathlib where
 ## Mathlib dependencies on upstream projects.
 -/
 
-require "leanprover-community" / "batteries" @ "git#nightly-testing"
+require "leanprover-community" / "batteries" @ "git#nightly-testing-2024-07-09"
 require "leanprover-community" / "Qq" @ "git#master"
 require "leanprover-community" / "aesop" @ "git#master"
 require "leanprover-community" / "proofwidgets" @ "git#v0.0.39"
diff --git a/lean-toolchain b/lean-toolchain
index b2ff4e8ac0698..34294b45414c2 100644
--- a/lean-toolchain
+++ b/lean-toolchain
@@ -1 +1 @@
-leanprover/lean4:nightly-2024-07-09
+leanprover/lean4-pr-releases:pr-release-4727